Detail | Model Number | Product Manufacturer | Main Specification | No. | Price |
---|---|---|---|---|---|
NC-72 | Rion | *Noise Meter Calibrator*Sound Level: 114 +/-0.2dB*Frequency:250Hz +/-1 percent | 022293 | ¥40,000 | |
SC-3100 | Ono Sokki | *Piston Phone (1/2 inch for Microphone)*Generated Frequency: 250Hz up to +/-0.4 percent*Generated High Voltage Level: 124dB up to +/-0.3dB | 021791 | ¥40,000 |